| 摘要 |
<p>A chair back height adjustment mechanism (10) comprises a guide (11) having an abutment surface (17) at a lateral side of the guide (11) which extends along an ad- justment direction (18). The chair back height adjustment mechanism (10) comprises an adjusting device (12) supported on the guide (11) so as to be displaceable along the adjustment direction (18). The adjusting device (12) comprises a carrier, a coupling member (31) which is moveably supported on the carrier, and a bias mechanism (35, 37, 45, 47). The coupling member (31) has a contact face (32) shaped to abut on the abutment surface (17) of the guide (11) and a slanted face (33). The bias mechanism (35, 37, 45, 47) is operative to apply a force onto the slanted face (33) to urge the contact face (32) of the coupling member (31) against the abutment surface (17) of the guide (11).</p> |
